It would be my first career level job. I am a recent college graduate and this would be perfect. I struggle with communication though and it is for a call center. Can anyone give me some advice? What things should I ask? What would you as a potential employer look for?

She told me NOT to bring my resume/cover letter because she has a copy already, should I anyways?

Relax. Be yourself. Firm handshake, don't have a weak handshake our you'll come off as unassertive (even if its a woman). You don't have to squeeze the shit out of the other person's hand though, just make your hand firm. Hold eye contact. Smile, and show enthusiasm.

Personality will win you the job. Oh and don't act all broey or douchie, like you got a chip on your shoulder, even if your previous job was 10x harder than this one.

Key thing here is to show ambition. In the workplace, theres nothing sexier than an ambitious young man...or woman.